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Mariner Portfolio holdings
AUM
$85.7B
1-Year Est. Return
24.21%
This Fund
S&P 500
This Quarter
Est. Return
+9.26%
1 Year Est. Return
+24.21%
3 Year Est. Return
+74.24%
5 Year Est. Return
+87.67%
10 Year Est. Return
+269.13%
AUM
$77.4B
AUM Growth
+$8.11B
(+12%)
Cap. Flow
+$3.32B
Cap. Flow
% of AUM
4.29%
Top 10 Holdings %
Top 10 Hldgs %
28.04%
Holding
3,806
New
339
Increased
1,836
Reduced
1,278
Closed
264
Top Buys
| Rank | Stock | Value |
|---|---|---|
| 1 |
ProShares Ultra Semiconductors
USD
|
+$770M |
| 2 |
NVIDIA
NVDA
|
+$373M |
| 3 |
Meta Platforms (Facebook)
META
|
+$179M |
| 4 |
Teledyne Technologies
TDY
|
+$167M |
| 5 |
Apple
AAPL
|
+$155M |
Top Sells
| Rank | Stock | Value |
|---|---|---|
| 1 |
Take-Two Interactive
TTWO
|
+$189M |
| 2 |
lululemon athletica
LULU
|
+$80.3M |
| 3 |
iShares 0-1 Year Treasury Bond ETF
SHV
|
+$79.8M |
| 4 |
Arch Capital
ACGL
|
+$42.3M |
| 5 |
Advanced Micro Devices
AMD
|
+$38.4M |
Sector Composition
| Rank | Sector | Weight |
|---|---|---|
| 1 | Technology | 22.54% |
| 2 | Financials | 7.9% |
| 3 | Consumer Discretionary | 5.38% |
| 4 | Communication Services | 4.83% |
| 5 | Healthcare | 4.73% |
| Name | Market Value | Portfolio Weight | Shares or Principal |
Change in Stake | Capital Flow | |
|---|---|---|---|---|---|---|
2851
Calvert US Mid-Cap Core Responsible Index ETF
CVMC
$106M
| $288K | ﹤0.01% |
4,531
+1
| +0% | +$62 |
|
2852
Grindr
GRND
$2.64B
| $287K | ﹤0.01% |
19,108
+6,305
| +49% | +$111K |
|
2853
FlexShares Quality Dividend Index Fund
QDF
$2.21B
| $287K | ﹤0.01% |
3,613
| – | – |
|
2854
First Trust Growth Strength ETF
FTGS
$1.26B
| $286K | ﹤0.01% |
7,965
-185
| -2% | -$6.5K |
|
|
CSGS
2855
DELISTED
CSG Systems International
CSGS
| $286K | ﹤0.01% |
4,440
+613
| +16% | +$39.1K |
|
2856
State Street SPDR EURO STOXX 50 ETF
FEZ
$4.28B
| $285K | ﹤0.01% |
4,587
-846
| -16% | -$50.8K |
|
2857
10x Genomics
TXG
$5.87B
| $285K | ﹤0.01% |
24,361
-16,562
| -40% | -$216K |
|
2858
Carter's
CRI
$1.43B
| $285K | ﹤0.01% |
10,089
-822
| -8% | -$23.6K |
|
2859
C4 Therapeutics
CCCC
$376M
| $285K | ﹤0.01% |
128,237
-4,528
| -3% | -$10.9K |
|
2860
Old Second Bancorp
OSBC
$1.24B
| $283K | ﹤0.01% |
16,380
+4,600
| +39% | +$82.8K |
|
2861
JPMorgan Diversified Return US Small Cap Equity ETF
JPSE
$592M
| $283K | ﹤0.01% |
5,678
-608
| -10% | -$29.2K |
|
2862
Garrett Motion
GTX
$5.9B
| $283K | ﹤0.01% |
20,743
+3,905
| +23% | +$49.4K |
|
2863
FT Vest US Equity Deep Buffer ETF March
DMAR
$450M
| $282K | ﹤0.01% |
6,925
+25
| +0.4% | +$1K |
|
2864
ProShares Bitcoin & Ether Equal Weight Strategy ETF
BETE
$7.28M
| $282K | ﹤0.01% |
+3,535
| New | +$288K |
|
2865
National Vision
EYE
$1.6B
| $281K | ﹤0.01% |
+9,633
| New | +$237K |
|
2866
Kelly Services Class A
KELYA
$526M
| $281K | ﹤0.01% |
+21,404
| New | +$285K |
|
2867
ACM Research
ACMR
$5.83B
| $280K | ﹤0.01% |
7,167
-3,431
| -32% | -$102K |
|
2868
Envista
NVST
$4.28B
| $280K | ﹤0.01% |
13,761
+2,264
| +20% | +$46.5K |
|
2869
Acco Brands
ACCO
$369M
| $280K | ﹤0.01% |
70,236
+58,808
| +515% | +$229K |
|
2870
iShares MSCI USA Small-Cap Min Vol Factor ETF
SMMV
$287M
| $280K | ﹤0.01% |
6,509
-378,131
| -98% | -$16.1M |
|
2871
REX American Resources
REX
$1.46B
| $280K | ﹤0.01% |
9,149
+361
| +4% | +$10.3K |
|
2872
Preferred Bank
PFBC
$1.22B
| $280K | ﹤0.01% |
3,093
-337
| -10% | -$31.2K |
|
2873
Vaxcyte
PCVX
$7.89B
| $279K | ﹤0.01% |
+7,755
| New | +$257K |
|
2874
Cinemark Holdings
CNK
$3.82B
| $279K | ﹤0.01% |
9,966
-1,664
| -14% | -$46K |
|
2875
CG Oncology
CGON
$6.11B
| $279K | ﹤0.01% |
+6,932
| New | +$202K |
|
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Mariner's Q3 2025 Portfolio in Review
As of Q3 2025, Mariner held 3,806 positions worth $77.4B, up 12% from $69.3B the previous quarter. Its ten largest holdings account for 28% of the portfolio.
Mariner deployed $3.32B of net new capital in Q3 2025, opening 339 new positions and adding to 1,836 existing holdings. Its largest new stake was ProShares Ultra Semiconductors: 17,808,292 shares worth $8.97M.
By sector, the portfolio is most concentrated in Technology at 23% of assets, up from 21% a quarter earlier, followed by Financials and Consumer Discretionary.
On the sell side, the largest reduction was Take-Two Interactive, an estimated $189M trimmed.
- Mariner's largest Q3 2025 buy was ProShares Ultra Semiconductors: 17,808,292 shares worth $8.97M.
- Mariner added most to NVIDIA in Q3 2025, an estimated $373M increase.
- Mariner's biggest Q3 2025 reduction was Take-Two Interactive, cutting an estimated $189M.
- Mariner fully exited Hess in Q3 2025, selling an estimated $5.21M.
- Mariner's ten largest holdings make up 28% of its $77.4B portfolio in Q3 2025.
- Mariner opened 339 new positions and closed 264 in Q3 2025.
- Mariner's portfolio value rose 12% quarter-over-quarter to $77.4B.
Based on Mariner's 13F filing for Q3 2025, filed 14 Nov 2025.